Pump



Nov. 8, 1927. 1,648,400

. v J. H. HILL PUMP Q Filed Jan, 29, 19b

INVEN TOR. #0244, 7a, m

Patented Nov. 8, i927.

JOHN n. HILL, or HOUSTON, TEXAS.

PUMP.

Application filed January 29, 1927. Serial No. 164,449.

This invention relates to new and useful improvements in a pump.

One object of the invention is to prov de a pump of the characterdescribed having a novel type of standing valve structure which may bereadily connected to the traveling valve and detached from the standingvalve nipple and withdrawn so as to permit. the fluid in the pump tubingto drain out into the well when the tubing is withdrawn.

Pumps of the character now commonly used for pumping oil from oil wellsare attached to the lower end of the well tub ng and it is necessary towithdraw said tubing from the well and break the same up into joints inorder to pull the pump from the well. During this operation the standingvalve, at the lower end of the pump barrel, is closed and the tubing isfilled with oil which spills out from the tubing, as the same is brokenup, onto the derrick floor and is wasted and interferes with the workmenon the derrick floor. It is the object of this invention to provide apump having a standing valve that may be readily connected to the suckerrod and detached from the standing valve nipple and withdrawn so thatthe oil in the tubing may be drained out into the well as the tubing iswithdrawn, in pulling the pump from the well.

lVith the above and other objects in view the invention has particularrelation to certain novel features of construction, operation andarrangement of parts, an example of which'is given in this specificationand illustrated in the accompanying drawings, wherein I I v Figure 1 isa vertical sectional view of the lower end of the working barrel showingthe valves therein.

Figure 2 is a fragmentary vertical sec tional view of the upper end ofsaid barrel Referring now more particularly to the drawings wherein likenumerals of reference designate similar parts in each of the figures,the numeral 1 designates the working barrel of the pump whose upper endis connected to the lower end of the pumptub ing 2 by means of thecoupling 3. Threaded 7 into the lower end of the barrel 1, by right handthreads 4, there is a tubular swedged nipple 5 whose lower end is blankand ex tends downwardly beneath the'barrel to receive the wrench forscrewing the same into,

or out of said barrel. The upper end of the.

nipple 5 is reduced forming the neck 6 which is provided with-externalleft hand threads and there is atubular bushing? whose lower end hasinternal left hand threads which are threaded on to the neck 6. Theupper endof the bushing 7 is reduced forming the neck 8 which has theexternal right hand threads 9 and mounted on this neck 8 there is anannular valve seat lOwhich is controlled by the upwardly opening valve11 confined bythe conventional valve cage 12 whose lower end is threadedon to the neck 8 and clamps the seat 10' between it and said neck 8.

In the working barrel there is a .conventional traveling valve structure13, which is controlled by the upwardly opening valve 14 and which maybereciprocated in the pump by means of the suckerv rod 15 to the lower endof which said traveling valve is attached. The sect-ions of the suckerrod 15 are connected by right hand threads and the sucker rod isconnected to the traveling valve by right hand threads. The cage 12 hasan upstanding connection 16 having the external right hand threads andthe lower end of the traveling valve 13. has the socket 17 provided withinternalright hand threads. l/Vhen it is attempted to pull the pump fromthe bore the traveling valve 13 is lowered and turned to the right so asto screw the connection 16 into the socket 17. The sucker rod is thenturned further toward the right thus unscrewing'the bushing 7 from theneck 6 of anchor or nipple 5' and tightening the.

threadsconnecting the other parts of the pump and when said bushing 7 isunscrewed from the neck 6 the traveling valve 13 and also all of thestanding valve structure eX- cepting the nipple 5 may be pulled upthrough the tubing. As the tubing is now pulled. and broken up the oilin it will drain back into the well.

What I claim is 1. A standing,valvemechanism including a tubular nipple,a tubular bushing attached to the upper end thereof, by left handthreads, an annular valve seat carried by said bushing, an upwardlyopening valve controlling said seat,a cage to confine said valve andattached to said bushing by right opening valve above said nipple, acage,

' valve, the threads connecting said bushing;

threaded to said bushing and confining said and nipple being pitched adirection the opposite of the pitch of the threads connecting the cageto saidbushing.

3. A standing valve structure for pumps including a nipple, a bushingthreaded t0 the nipple by means ofleft hand threads, said nipple andbushing having a fluid pase sagevvay thereth-rough, a valve above thebushlng-controlling said passageway, a valve 7 cage attached to saidbushing and confining Said valve. v

4. The combination with a pump Working barrel, of'a tubular. anchorcarried by the lower end thereof, a tubular bushing connected to saidanchor, an upwardly opening valve above said bushing and controlling thepas sageway therethrough, a cage connected to the upper end of saidbushingand confining said valve, one of said-connections beingaccomplished by left hand-threads 5. The combination WiflTa pump Workingbarrel, of a tubular anchor carried by the lower end thereof, a tubularbushing connerted to the upper end of said anchor by left hand threads,an upwardly opening valve above said bushing and controlling thepassageway therethrough, a cage connected, :by right hand threads to theupper end of said bushing, and confining said valve and an upstandingneck, having right hand threads, carried by the upper end of said ca e.

ll. The combination With a pump Working barrel, of'an anchor at thelower end thereof, a valve mechanism including a valve cage, a valveconfined by said cage, a tubular connecting member having a fluidpassageway therethrough controlled by said valve, said tubularconnecting 'member being connected to said cage and anchor, one of suchconnections being effected by left hand threads.

In testimony whereof I have signed my name to this'spe'cification.

JOHN H, I L;

